A8296SESTR-T

• Product introduction

Designed for use in analog and digital satellite receivers, this single low-noise downconversion is convertedVoltage regulator(LNBR) 是单片线性/开关稳压器，专用于通过同轴电缆将功率和接口信号传给一个 LNB 降压转换器。A8296 具有集成到器件内的升压开关和补偿电路，无需外部元件。

A8296Designed to achieve high efficiency by leveraging Allegro's® advanced BCD processes. The integrated boost switch is optimized to minimize switching and static losses. To further improve efficiency, voltage drops during the tracking regulator have been minimized.

对于 DiSEqC™ 通信，提供音调控制引脚对内部生成的 22 kHz 音调开关进行选通控制。

该器件提供一组全面的故障寄存器，有关寄存器符合所有的通用标准，其中包括：过电流、过热关机、欠压以及电源不良。此外，设计方法和结构确保了最高级别的稳定性，以防瞬变和元件故障。

The device uses a 2-wire bidirectional serial interface, with I²C™ 标准兼容，工作频率高达 400 kHz。

A8296 采用无铅 (Pb) 封装。

• Integrated boost MOSFETs, current sensing, and compensation
• Adjustable LNB output current limit from 250 to 950 mA
  • It can meet a wide range of application needs
  • The most compact components for a wide range of applications
  • 用于启动、重新配置、及连续输出
    （最大值取决于 PCB 散热设计）
• 通过 LNB 电流 
  限制设置升压峰值电流限制水平
• 8-Level Programmable LNB Output Voltage (DAC)
• LNB overcurrent limiter with shutdown timer
• Track boost converters to reduce power consumption
• LNB transient time configurable by an external capacitor
• 推拉 LNB 输出阶，即使在高电容负载的情况下也能维持 13→18 V 以及 18→13 V 瞬变时间
• A built-in 22 kHz tone oscillator facilitates DiSEqC™ tone encoding, even when there is no load
• No additional external components are required to produce tones
• Diagnostic function: PNG
• Extensive protection functions: UVLO, OCP, TSD, CPOK
• 2-wire I²C-compatible interface